Steam-jet for boilers.



No. 627,724. Patented June 27, I899.

' E. FALES.

STEAM JET FOR BOILERS.

(Application filed Oct 28, 1898.)

2 SheetsSheet I.

(No Model.)

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ATT'Y.

THE N No. 627,724. Patented June 27, I899; E. FALES.

STEAM JET FOR BOILERS.

(Application filed Oct. 28, 1898.)

(No Model.) 2 Sheets-Sheel 2.

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' BY ATT'Y.

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A UNITED STATES PATENT OFFICE.

EDWVARD FALES, OF WINTHROP, MASSACHUSETTS.

STEAM -J ET FOR BOILERS.

SPECIFICATION forming part of Letters Patent No. 627,724, dated June 27, 1899.

Application filed 0 1361 28, 1898 Serial No. 694,886. (No modelJ To all whom it may our warn:

Be it known that I, EDWARD FALES, a citizen of the United States,residing atWinthrop, in the county of Suffolk, State of Massachusetts,haveinv entedanewanduseful Improvement inSteam-Jets, of which the following is a specification.

My invention is related to all kinds ofsteamgenerating furnaces; and it consists in providing a system of steam-supply pipes so arranged that the steam-jets may be raised or lowered to suit the kind or quality of coal used and to project the steam horizontally over the fire; and the objects of myimprovement are, first, to produce a more perfect combustion, and thereby preventthe formation of black smoke, and, second, to enable the stoker to set the steam-jets at the exact point where the best results may be obtained. I attain these objects by a mechanism illustrated in the accompanying drawings, in Which- Figure 1 is a vertical front view of asteamboiler and furnace with the boiler-front removed and with aportion of the sidewalls cut away to show the pipe connections with the steam-jets. Fig. 2 is a vertical side view of a boiler B and furnace-Wall A, With apart of the side wall cut away to show the position of the steam-jet bar and the connections on top of the boiler. Fig. 3 is a perpendicular back View of the frame carrying the jet-bar. Fig. 4 is a front View of the furnace, showing the stanchions on top of the boilers and the operating-lever L. Fig. 5 is a perspective view of the steam-jet bar. Fig. 6 is a perspective view of the device used to connect the movable joints. Fig. 7 isadetailed view showing the stanchions f on hook-rod E.

Similar letters refer to similar parts th roughout the several views.

The letter A indicates the fur ace, and B the boiler, of an ordinary steam-generator.

The letter N indicates a vertically-movable tubular frame which is composed of two vertical side tubes 0 O, a horizontal injectortube D, connected with the lower ends of the vertical tubes by means of T-shaped couplings d and two upper horizontaltubes C 0, connected with the upper ends of the vertical tubes by means of suitable elbow-couplings; The inner ends of the tubes 0' O are loosely secured in the arms of a central T- coupling d for the purpose to be hereinafter explained. In the side walls of the furnace are cut vertical channels a a for the reception of the vertical tubes 0 C, so that the coupling (1 is a horizontal tube 0, which, ex-

tending rearwardly, has its rear or inner end connected 'with the lower end of a short vertical tube 0" by means of a union-joint (1 Fig. 2. The upper end of the vertical tube 0' is connected, by means of another unionjoint 01 with one end of a horizontal tube h, which is provided with a valve 1), and the other end of said tube h is connected with the steam-dome by means of an elbow and nipple b in the usual manner. Attached to the T- coupling cl is one end of a chain or cord Z,

the other end of which passes over pulleys Z Z, secured to the ceiling or other suitable place, and is attached to a lever L, pivoted to the boiler-front L. The lever moves verticallyin a guide M, to one side of which is pivoted a triangular swinging catch m, which i is adapted to hold the lever when it is pulled down to raise thetubularframeN. Secured to the top of the boiler forward of the dome is a standard H, to the upper end of which at G is fulcrumed a lever G. The outer or rear end g of this lever is connected to the handle of the valve b by means of a connecting rod or link g, and secured to the tube 0 is v a hook-bar E, which is provided with a hook 6, adapted to engage the front end of-the lever G to holdit in normal position. distance below the hook e on the bar E is formed a bracket c, which projects outwardly a slight distance beyond said hook and serves to engage the lever as it moves upward. A standard F is attached to the top of the boiler at F just in front of the frame N and serves as a guide for the front end of the lever G. The standard F a suitable distance below its upper 'A short' end is provided with a cam f, which tends to throw the lever G out of its engagement with the hook e in the bar E on the downward movement of the frame.

Secured to each inner side Wall of the firebox K are two sets of studs or pins t' t", the lower set of which, i, are arranged to limit the downward movement of the tubular frame and the upper ones, i, to contact with the tongue portion of the injector-tube on its upward movement and cause said tube to turn in the arms of the T-coupling cl, thereby deflecting said tongue portion.

The operation of the device is as follows: The tubular frame rests normally on the studs or pins if, as shown in Figs. 1 and 2, and these studs or pins are so arranged that the injectortube will be immediately in the rear of the feed-doors k and will inject the steam along and over the fuel-bed as near the point of combustion as may be required. In charging the furnace with coal the frame is raised out of the way by pulling down the leverL until it passes the swinging catch on. After the lever has passed the catch said catch swings across the top of the lever and holds it in place. The loose connections between the inner ends of the tubes 0' C and the T-coupling d and the union-joint (1 permit of the free vertical movement of the frame. After the furnace has .been charged the frame is lowered to normal position and the steam turned on at the desired moment. When it is necessary to supply coal, the lever L is pulled down to again raise the frame. As it moves upward the tongue D of the injector-tube comes in contact with the studs 1; 11, which will cause it to tip downward, as shown by dotted lines in Fig. 2. Just before the furnace reaches its limit of-movement the bracket e in the hookbar E engages the lever G, moving its front end upward and its rear end downward. This movement of the lever actuates the valve 1) to automatically cut off the supply of steam. When the coal has been supplied, the lever L is released from its engagement with the swinging catch and the frame is permitted to descend to normal position. As the slightlydeflected tongue D comes in contact with the lower studs 2' it will be returned to normal position. 1 At the same time the hook e will engage the lever Gr, pulling it down until it is released by engaging with the cam f on the standard F. As the lever G is forced downward the valve is automatically operated to turn on the steam.

In using difierent kinds of coal it is found necessary to set the injector-tube at difierent points. This may be accomplished whenever required by adjusting the frame until the proper joint necessary-for the best combustion has been ascertained, it being understood that such adjustment will be limited between the normal position of the injectortube and a point just below the extreme limit of movement of the frame.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is-

1. In a smoke-consuming device, the combination with a vertically-movable injectortube frame, and a union-jointed supply connection between said frame and the boiler, of means for automatically turning on and cutting off the steam and means for raising and lowering the frame to automatically cut off and turn on the steam-supply.

2. In asmoke-consuming device, the combination with a vertically-movable frame, composed of an injector-tube, vertical side tubes, and two horizontal tubes centrally connected by a loose T- coupling, of means connecting said frame with a source of steam-supply, automatic means for turning on and cutting off the steam-supply, and means for raising and lowering the frame to operate the automatic means.

3. The combination with the injector-tube and side tubes, the upper horizontal tubes loosely connected together by a T- coupling, a union-jointed connection between the injector-tube and a source of steam-supply, a valve or cock located in the steam-supply, of a fulcrumed lever, connected with said valve, and means for raising and lowering said injector-tube, whereby said lever may be operated to automatically open and close the valve.

4. The combination, with the verticallymovable injector-frame having the inner ends of its upper tubes loosely connected by a T: coupling, and union-jointed connection between said frame and the source of steamsupply, of channels cut in the side walls of the furnace for the reception of the vertical frame, and means for raising and lowering said frame.

5. The combination, with the verticallymovable injector-frame, operating in channels formed in the side walls of the furnace,

of means for raisin gand lowering the injectoris lowered.

EDWARD FALES. Witnesses:

LEILA F. BROWN,

CHAS. FRANK. I

IIO 

